Started by GeoffB17, 03:03, 01 May 22
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Quote from: P5ychoFox on 19:01, 02 May 22I had one of these about five years ago in a lot of 9512s (fitted to the rear of one) and sold it (possibly to Habi). A very impressive thing that booted the 9512 straight to Locoscript (but you could upload any program to boot to). I now have another that has PCW diagnostic programs on and it boots an 8256 straight into this. I was hoping a clone would have been made by now but it may be a difficult task.
Quote from: JohnElliott on 16:09, 04 May 22@jamesots had something prototyped a few years ago that could boot a PCW from an SD card:
0000: Short jump to boot code at 001Fh0002: Offset to boot programs table (as on the Gem drive, see https://www.seasip.info/Unix/Joyce/gemdrive.html)0004: Offset to internal copy of FDRIVER.FID0006: Offset to splash screen0008: Offset to internal copy of FDRIVER.FIC (second, slightly different driver for LocoScript 4)000A: Default operating system (CP/M or LocoScript)000B: CP/M DPB for the drive001C: Sector number of first sector of CP/M directory001E: Checksum byte001F: Jump to boot code at 0100h0022-007F: Unused0080: First stage boot code (when executed it is mapped at 0100h). Copies the PCW's floppy boot code to RAM at 0D000h, and the second-stage boot code to 0E880h.0100: Second stage boot code (when executed it is at 0E880h).0700: Boot programs table, used for inserting FDRIVER.FID into a loaded EMS file.0880: FDRIVER.FID0C80: Splash screen4400: FDRIVER.FIC
Quote from: GeoffB17 on 19:40, 27 May 22Flash floppy drive is clearly stated as being READ-ONLY. It is possible to copy NEW files to the drive (using the special FCOPY utility) but you cannot otherwise change/update/delete files on the drive. So it is FAR from a normal disk drive (things may have changed from 1994 to now though??). All normal system operations are affected otherwise, so any edit/save/etc operation will need to use the normal floppy drive(s) or M:.There seem to be ?? regarding the use of SUBMIT.COM, as this usually involves a temporary file. May need a special version of SUBMIT?
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